What is it?
The RF performance of all Base Station, Mobile or Portable radios is quantified in a set of specifications given in deciBels (dB). One set of RF performance specifications describes the Transmitter performance, another describes the Receiver performance. For some RF performance specifications, a larger number is better; and for others, a smaller number is best. There are minimum acceptable RF performance specifications prescribed by regulatory authorities such as ETSI (Europe) and FCC (USA). Meeting these is mandatory.
Some RF performance specifications are more... Continue Reading
Last week, in Part I of DMR Tier 2 FAQs, we covered the features of Tait’s DMR Tier 2 solution and compared it to our DMR Tier 3 offering. This week, we delve deeper into specifics like location services, console support, interoperability, and encryption.
Q. Why does Tait require a node to support multi-site DMR Tier 2 solutions?
To create a multi-site IP linked system, we use a Tier 2 Node. This centralized architecture is very useful for system connectivity/application, as with DMR Tier 3.
- The node reduces the bandwidth required by the supporting multisite IP network.... Continue Reading
Over the last few weeks, we have been covering some technical aspects of our DMR Tier 2 solution like Connecting DMR Tier 2 with a Voice Recorder, Console and AVL, The layout of a Multi-Site Tait DMR Tier 2 network and How to set up the Tait DMR Tier 2 Node. During this time, we have received a few inquiries on our DMR Tier 2 solution and have decided to also answer them on our blog. This will be done in two parts. In the first part this week, we will discuss the basics of the Tait DMR Tier 2 solution and how its features compare to the our DMR Tier 3 solutions. Next... Continue Reading
If you are considering a new radio system or a replacement/upgrade of your existing system, choosing the right technology is of prime importance. The decision to use a particular technology should always be based on best fit to achieve the project’s objectives.
In the article below, we have aimed at comparing the relative advantages and disadvantages of DMR and TETRA along several factors including coverage, frequency bands, fallback to analog and the ease and cost of migration.
In the first part of this series, we explained the two main types of digital modulation, Phase Shift Keying (PSK) and Frequency Shift Keying (FSK) with an example of each – Linear Simulcast Modulation (LSM) – a type of PSK, and Continuous Four Frequency Modulation (C4FM) – a type of FSK. We also compared the spectral efficiencies of LSM and C4FM. In this part, we compare the costs and effect of delay spread of the types of digital modulation.
Effect of delay spread
Most digital radio modulation types are based on either Phase Shift Keying (PSK) or Frequency Shift Keying (FSK). Tait Principal Engineer Ian Graham is often asked about their relative advantages and disadvantages, so in this article he sets out to explore the subject.
To make it ‘real’, we will compare two actual modulation schemes: Linear Simulcast Modulation (LSM) – a type of PSK, and Continuous Four Frequency Modulation (C4FM) – a type of FSK. We will describe them, cover their relative advantages and disadvantages, then use an example simulcast system to show a practical comparison. Continue Reading
Tait TP9300 DMR Portable Radio
The TP9300 is one of the most advanced portable radios in the market, and now, it is reaching new heights. With the new Quad-Mode functionality, users are now able to switch between four different standards (Analog Conventional, MPT1327, DMR Tier 2 and DMR Tier 3) on any one radio. But that’s just one of the great features we’ve built in, the TP9300 also includes:
- Tait Tough Mission Critical Build Quality
- Enhanced Vocoder for Voice Clarity
- Man Down Emergency
- Full Interoperability
- Smooth Network Migration
- Stun and Revive
- GPS Technology
Check out our new features video to see the TP9300 in action: Continue Reading
Dr. Russell Watson, Tait Solutions Marketing Manager for Public Safety
The second Tait podcast has arrived. Today we talk with Dr. Russell Watson, the Solutions Marketing Manager for Public Safety at Tait. Russell has spent years studying the P25 standard and is an expert in open standards.
When the P25 standards were outlined, one of the primary goals was to ensure open standards and interoperability. But still, many public safety agencies find themselves with P25 equipment that has proprietary features and forces them to stay with the same vendor. In this podcast, we... Continue Reading
The most commonly-selected procurement process in Public Safety communications system purchases is the Request for Proposal (RFP).
There are no commonly recognized, unbiased, detailed templates in circulation, but the following pages show a sample high-level table of contents for a new system
purchase RFP. You can use it as a checklist to test your RFP for completeness.
Format and contents
Explain your requirements and expectations explicitly regarding the format and contents of proposals. The more uniform the format of the responses, the easier it will be for you to... Continue Reading
Tait CIO John Emerson discusses why security of information is such a concern, and where to start to make a difference.
What can a security breach mean for your organization?
- Loss of reputation, customer or community trust
- Intellectual property theft
- Loss of investor confidence market share and revenue
- Legal action